geÂ·oÂ·therÂ·mal. Relating to the internal heat of the Earth. The water of hot springs and geysers is heated by geothermal sources. â¦ Power that is generated using the Earth's internal heat is called geothermal energy.eothermal. adj. 1. (Geological Science) of or relating to the heat in the interior of the earth. (ËdÊi oÊËÎ¸Ér mÉl). adj.
Coloradoâs Scenic Million Dollar Highway: Silverton to Ouray. The scenic drive on Coloradoâs Million Dollar Highway (U.S. Route 550), from Silverton to Ouray, just might be the most eye-popping, awe-inspiring drive we have ever taken.
The Pan-American Highway is the longest road in the world. It runs from Fairbanks, Alaska to Buenos Aires, Argentina, stretching 29,800 miles (47,958 km). But it was never completed. A portion called the Darien Gap, mostly jungle about 100 miles (160 km) long located in Panama and Colombia, remains uncompleted.